AQSQID: 401090097

Site Name: Near Road Okc

Location: Oklahoma City, OK

Reporting: True, Located: True

Current AQI: 50.0

Oklahoma City OK, US: 35.502968, -97.577674

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 20, 2019, 5 p.m. 31.0 ppb (29) 24.0 ppb (22) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 26.0 μg/m3 (24) 12.2 μg/m3 (50) 50.0
 
May 20, 2019, 4 p.m. 32.0 ppb (30) 23.0 ppb (21) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 10.5 μg/m3 (44) 44.0
 
May 20, 2019, 3 p.m. 36.0 ppb (33) 26.0 ppb (24) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) 20.0 μg/m3 (18) 8.8 μg/m3 (37) 37.0
 
May 20, 2019, 2 p.m. 36.0 ppb (33) 27.0 ppb (25) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 9.2 μg/m3 (38) 38.0
 
May 20, 2019, 1 p.m. 31.0 ppb (29) 21.0 ppb (19) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 6.1 μg/m3 (25) 29.0
 
May 20, 2019, noon 32.0 ppb (30) 23.0 ppb (21) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 4.7 μg/m3 (20) 30.0
 
May 20, 2019, 11 a.m. 30.0 ppb (28) 20.0 ppb (19) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 4.4 μg/m3 (18) 28.0
 
May 20, 2019, 10 a.m. 20.0 ppb (19) 12.0 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 4.6 μg/m3 (19) 19.0
 
May 20, 2019, 9 a.m. 23.0 ppb (21) 14.0 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
May 20, 2019, 8 a.m. 16.0 ppb (15) 7.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
May 20, 2019, 7 a.m. 19.0 ppb (18) 9.0 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
May 20, 2019, 6 a.m. 18.0 ppb (17) 8.0 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) 11.0 μg/m3 (10) 4.6 μg/m3 (19) 19.0
 
May 20, 2019, 5 a.m. 26.0 ppb (24) 15.0 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 24.0
 
May 20, 2019, 4 a.m. 28.0 ppb (26) 15.0 ppb (14) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 4.4 μg/m3 (18) 26.0
 
May 20, 2019, 3 a.m. 39.0 ppb (36) 23.0 ppb (21) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (12) 4.8 μg/m3 (20) 36.0
 
May 20, 2019, 2 a.m. 32.0 ppb (30) 18.0 ppb (17) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (12) 4.3 μg/m3 (18) 30.0
 
May 20, 2019, 1 a.m. 25.0 ppb (23) 16.0 ppb (15) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 3.6 μg/m3 (15) 23.0
 
May 20, 2019, midnight 23.0 ppb (21) 13.0 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 3.7 μg/m3 (15) 21.0
 
May 19, 2019, 11 p.m. 25.0 ppb (23) 14.0 ppb (13) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 23.0
 
May 19, 2019, 10 p.m. 25.0 ppb (23) 15.0 ppb (14) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 2.7 μg/m3 (11) 23.0
 
May 19, 2019, 9 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 12.0
 
May 19, 2019, 8 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 7.0 μg/m3 (6) 1.8 μg/m3 (8) 8.0
 
May 19, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.1 ppb (1) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 8.0
 
May 19, 2019, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) 8.0 μg/m3 (7) 2.6 μg/m3 (11) 11.0
 
May 19, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) 9.0 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 4 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) 8.0 μg/m3 (7) 2.9 μg/m3 (12) 12.0
 
May 19, 2019, 3 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) 7.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
May 19, 2019, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 13.0
 
May 19, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.1 ppb (1) 7.0 μg/m3 (6) 2.9 μg/m3 (12) 12.0
 
May 19, 2019, noon 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) 9.0 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 11 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) 8.0 μg/m3 (7) 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.0 ppb (0) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
May 19, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.0 ppb (0) 10.0 μg/m3 (9) 3.3 μg/m3 (14) 14.0
 
May 19, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.0 ppb (0) 10.0 μg/m3 (9) 3.4 μg/m3 (14) 14.0
 
May 19, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 17.0
 
May 19, 2019, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) 16.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
May 19, 2019, 5 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
May 19, 2019, 4 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
May 19, 2019, 3 a.m. 25.0 ppb (23) 10.0 ppb (9) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 23.0
 
May 19, 2019, 2 a.m. 33.0 ppb (31) 13.0 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 31.0
 
May 19, 2019, 1 a.m. 35.0 ppb (32) 17.0 ppb (16) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 4.5 μg/m3 (19) 32.0
 
May 19, 2019, midnight 32.0 ppb (30) 16.0 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 4.5 μg/m3 (19) 30.0
 
May 18, 2019, 11 p.m. 33.0 ppb (31) 16.0 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 4.4 μg/m3 (18) 31.0
 
May 18, 2019, 10 p.m. 32.0 ppb (30) 16.0 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 30.0
 
May 18, 2019, 9 p.m. 28.0 ppb (26) 16.0 ppb (15) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 26.0
 
May 18, 2019, 8 p.m. 38.0 ppb (35) 21.0 ppb (19) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) 12.0 μg/m3 (11) 4.7 μg/m3 (20) 35.0
 
May 18, 2019, 7 p.m. 35.0 ppb (32) 18.0 ppb (17) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 32.0
 
May 18, 2019, 6 p.m. 33.0 ppb (31) 16.0 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 4.5 μg/m3 (19) 31.0
 
May 18, 2019, 5 p.m. 24.0 ppb (22) 11.0 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) 13.0 μg/m3 (12) 5.8 μg/m3 (24) 24.0
 
May 18, 2019, 4 p.m. 34.0 ppb (31) 14.0 ppb (13) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (4) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 18, 2019, 3 p.m. 35.0 ppb (32) 15.0 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (4) 18.0 μg/m3 (16) 8.2 μg/m3 (34) 34.0
 
May 18, 2019, 2 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
May 18, 2019, 1 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) 16.0 μg/m3 (15) 7.4 μg/m3 (31) 31.0
 
May 18, 2019, noon 24.0 ppb (22) 15.0 ppb (14) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
May 18, 2019, 11 a.m. 20.0 ppb (19) 12.0 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 11.3 μg/m3 (47) 47.0
 
May 18, 2019, 10 a.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) 20.0 μg/m3 (18) 10.7 μg/m3 (45) 45.0
 
May 18, 2019, 9 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 20.0 μg/m3 (18) 10.9 μg/m3 (45) 45.0
 
May 18, 2019, 8 a.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
May 18, 2019, 7 a.m. 13.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) 18.0 μg/m3 (16) 9.9 μg/m3 (41) 41.0
 
May 18, 2019, 6 a.m. 13.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 9.8 μg/m3 (41) 41.0
 
May 18, 2019, 5 a.m. 15.0 ppb (14) 8.0 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 9.8 μg/m3 (41) 41.0
 
May 18, 2019, 4 a.m. 17.0 ppb (16) 8.0 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) 20.0 μg/m3 (18) 9.7 μg/m3 (40) 40.0
 
May 18, 2019, 3 a.m. 20.0 ppb (19) 10.0 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) 23.0 μg/m3 (21) 10.2 μg/m3 (42) 42.0
 
May 18, 2019, 2 a.m. 24.0 ppb (22) 12.0 ppb (11) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 24.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 1 a.m. 24.0 ppb (22) 13.0 ppb (12) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) 26.0 μg/m3 (24) 9.9 μg/m3 (41) 41.0
 
May 18, 2019, midnight 31.0 ppb (29) 18.0 ppb (17) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) 27.0 μg/m3 (25) 10.2 μg/m3 (42) 42.0
 
May 17, 2019, 11 p.m. 35.0 ppb (32) 23.0 ppb (21) N/A 12.0 ppb (11) N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (29) 10.5 μg/m3 (44) 44.0
 
May 17, 2019, 10 p.m. 32.0 ppb (30) 17.0 ppb (16) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) 23.0 μg/m3 (21) 9.8 μg/m3 (41) 41.0
 
May 17, 2019, 9 p.m. 28.0 ppb (26) 15.0 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) 27.0 μg/m3 (25) 10.1 μg/m3 (42) 42.0
 
May 17, 2019, 8 p.m. 41.0 ppb (38) 24.0 ppb (22) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) 32.0 μg/m3 (29) 11.1 μg/m3 (46) 46.0
 
May 17, 2019, 7 p.m. 44.0 ppb (41) 27.0 ppb (25) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) 32.0 μg/m3 (29) 11.1 μg/m3 (46) 46.0
 
May 17, 2019, 6 p.m. 45.0 ppb (42) 28.0 ppb (26) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 5 p.m. 40.0 ppb (37) 24.0 ppb (22) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 11.4 μg/m3 (48) 48.0
 
May 17, 2019, 4 p.m. 27.0 ppb (25) 15.0 ppb (14) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
May 17, 2019, 3 p.m. 41.0 ppb (38) 24.0 ppb (22) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 11.7 μg/m3 (49) 49.0
 
May 17, 2019, 2 p.m. 44.0 ppb (41) 26.0 ppb (24) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) 30.0 μg/m3 (27) 11.5 μg/m3 (48) 48.0
 
May 17, 2019, 1 p.m. 57.0 ppb (53) 34.0 ppb (31) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) 28.0 μg/m3 (25) 11.6 μg/m3 (48) 53.0
 
May 17, 2019, noon 34.0 ppb (31) 16.0 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) 20.0 μg/m3 (18) 10.5 μg/m3 (44) 44.0
 
May 17, 2019, 11 a.m. 44.0 ppb (41) 22.0 ppb (20) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) 23.0 μg/m3 (21) 10.5 μg/m3 (44) 44.0
 
May 17, 2019, 10 a.m. 25.0 ppb (23) 11.0 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) 19.0 μg/m3 (17) 9.7 μg/m3 (40) 40.0
 
May 17, 2019, 9 a.m. 21.0 ppb (19) 9.0 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 9.2 μg/m3 (38) 38.0
 
May 17, 2019, 8 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) 17.0 μg/m3 (15) 8.7 μg/m3 (36) 36.0
 
May 17, 2019, 7 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 17.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
May 17, 2019, 6 a.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
May 17, 2019, 5 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
May 17, 2019, 4 a.m. 22.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 9.5 μg/m3 (40) 40.0
 
May 17, 2019, 3 a.m. 25.0 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) 21.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
May 17, 2019, 2 a.m. 34.0 ppb (31) 13.0 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) 24.0 μg/m3 (22) 8.7 μg/m3 (36) 36.0
 
May 17, 2019, 1 a.m. 44.0 ppb (41) 18.0 ppb (17) N/A 26.0 ppb (24) N/A N/A N/A 0.6 ppb (7) 24.0 μg/m3 (22) 8.5 μg/m3 (35) 41.0
 
May 17, 2019, midnight 40.0 ppb (37) 19.0 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) 29.0 μg/m3 (26) 9.4 μg/m3 (39) 39.0
 
May 16, 2019, 11 p.m. 41.0 ppb (38) 21.0 ppb (19) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) 27.0 μg/m3 (25) 9.8 μg/m3 (41) 41.0
 
May 16, 2019, 10 p.m. 24.0 ppb (22) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 25.0 μg/m3 (23) 9.9 μg/m3 (41) 41.0
 
May 16, 2019, 9 p.m. 29.0 ppb (27) 14.0 ppb (13) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) 25.0 μg/m3 (23) 10.8 μg/m3 (45) 45.0
 
May 16, 2019, 8 p.m. 24.0 ppb (22) 12.0 ppb (11) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 30.0 μg/m3 (27) 10.4 μg/m3 (43) 43.0
 
May 16, 2019, 7 p.m. 18.0 ppb (17) 8.0 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) 29.0 μg/m3 (26) 10.7 μg/m3 (45) 45.0
 
May 16, 2019, 6 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 28.0 μg/m3 (25) 9.7 μg/m3 (40) 40.0
 
May 16, 2019, 5 p.m. 22.0 ppb (20) 11.0 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) 28.0 μg/m3 (25) 10.3 μg/m3 (43) 43.0
 
May 16, 2019, 4 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) 31.0 μg/m3 (28) 10.5 μg/m3 (44) 44.0
 
May 16, 2019, 3 p.m. 16.0 ppb (15) 8.0 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) 30.0 μg/m3 (27) 10.4 μg/m3 (43) 43.0
 
May 16, 2019, 2 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) 32.0 μg/m3 (29) 10.1 μg/m3 (42) 42.0
 
May 16, 2019, 1 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) 26.0 μg/m3 (24) 10.1 μg/m3 (42) 42.0
 
May 16, 2019, noon 24.0 ppb (22) 10.0 ppb (9) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 23.0 μg/m3 (21) 9.2 μg/m3 (38) 38.0
 
May 16, 2019, 11 a.m. 33.0 ppb (31) 13.0 ppb (12) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) 26.0 μg/m3 (24) 9.6 μg/m3 (40) 40.0
 
May 16, 2019, 10 a.m. 22.0 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 9.4 μg/m3 (39) 39.0
 
May 16, 2019, 9 a.m. 21.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.2 ppb (2) 21.0 μg/m3 (19) 9.1 μg/m3 (38) 38.0
 
May 16, 2019, 8 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.1 ppb (1) 17.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
May 16, 2019, 7 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.1 ppb (1) 17.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
May 16, 2019, 6 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 8.8 μg/m3 (37) 37.0
 
May 16, 2019, 5 a.m. 26.0 ppb (24) 6.0 ppb (6) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 8.8 μg/m3 (37) 37.0
 
May 16, 2019, 4 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 21.0 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
May 16, 2019, 3 a.m. 34.0 ppb (31) 9.0 ppb (8) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) 23.0 μg/m3 (21) 7.5 μg/m3 (31) 31.0
 
May 16, 2019, 2 a.m. 28.0 ppb (26) 8.0 ppb (7) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (4) 24.0 μg/m3 (22) 6.7 μg/m3 (28) 28.0
 
May 16, 2019, 1 a.m. 43.0 ppb (40) 15.0 ppb (14) N/A 28.0 ppb (26) N/A N/A N/A 0.6 ppb (7) 23.0 μg/m3 (21) 7.2 μg/m3 (30) 40.0
 
May 16, 2019, midnight 40.0 ppb (37) 15.0 ppb (14) N/A 24.0 ppb (22) N/A N/A N/A 0.5 ppb (6) 29.0 μg/m3 (26) 8.0 μg/m3 (33) 37.0
 
May 15, 2019, 11 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 25.0 μg/m3 (23) 7.7 μg/m3 (32) 32.0
 
May 15, 2019, 10 p.m. 23.0 ppb (21) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) 20.0 μg/m3 (18) 7.6 μg/m3 (32) 32.0
 
May 15, 2019, 9 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) 26.0 μg/m3 (24) 8.3 μg/m3 (35) 35.0
 
May 15, 2019, 8 p.m. 22.0 ppb (20) 10.0 ppb (9) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) 25.0 μg/m3 (23) 7.8 μg/m3 (32) 32.0
 
May 15, 2019, 7 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 25.0 μg/m3 (23) 7.3 μg/m3 (30) 30.0
 
May 15, 2019, 6 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) 23.0 μg/m3 (21) 6.8 μg/m3 (28) 28.0
 
May 15, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 22.0 μg/m3 (20) 6.3 μg/m3 (26) 26.0
 
May 15, 2019, 4 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) N/A N/A 6.0
 
May 15, 2019, 3 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 17.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
May 15, 2019, 2 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) 19.0 μg/m3 (17) 5.3 μg/m3 (22) 22.0
 
May 15, 2019, 1 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 32.0 μg/m3 (29) 6.6 μg/m3 (28) 29.0
 
May 15, 2019, noon 19.0 ppb (18) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 5.7 μg/m3 (24) 24.0
 
May 15, 2019, 11 a.m. 16.0 ppb (15) 6.0 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) 14.0 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
May 15, 2019, 10 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 12.0 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
May 15, 2019, 9 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) 12.0 μg/m3 (11) 5.6 μg/m3 (23) 23.0
 
May 15, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 13.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
May 15, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) 15.0 μg/m3 (14) 7.4 μg/m3 (31) 31.0
 
May 15, 2019, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (1) 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
May 15, 2019, 5 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.1 ppb (1) 17.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
May 15, 2019, 4 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
May 15, 2019, 3 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) 26.0 μg/m3 (24) 7.5 μg/m3 (31) 31.0
 
May 15, 2019, 2 a.m. 22.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) 22.0 μg/m3 (20) 6.5 μg/m3 (27) 27.0
 
May 15, 2019, 1 a.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 6.3 μg/m3 (26) 26.0
 
May 15, 2019, midnight 14.0 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 11 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 10 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 6.1 μg/m3 (25) 25.0
 
May 14, 2019, 9 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) 22.0 μg/m3 (20) 6.6 μg/m3 (28) 28.0
 
May 14, 2019, 8 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) 23.0 μg/m3 (21) 6.6 μg/m3 (28) 28.0
 
May 14, 2019, 7 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 27.0 μg/m3 (25) 6.4 μg/m3 (27) 27.0
 
May 14, 2019, 6 p.m. 23.0 ppb (21) 11.0 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) 25.0 μg/m3 (23) 6.3 μg/m3 (26) 26.0
 
May 14, 2019, 5 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 4 p.m. 18.0 ppb (17) 8.0 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) 24.0 μg/m3 (22) 5.6 μg/m3 (23) 23.0
 
May 14, 2019, 3 p.m. 22.0 ppb (20) 11.0 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) 26.0 μg/m3 (24) 5.9 μg/m3 (25) 25.0
 
May 14, 2019, 2 p.m. 22.0 ppb (20) 10.0 ppb (9) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
May 14, 2019, 1 p.m. 24.0 ppb (22) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 35.0 μg/m3 (32) 8.2 μg/m3 (34) 34.0
 
May 14, 2019, noon 23.0 ppb (21) 8.0 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) 41.0 μg/m3 (37) 9.2 μg/m3 (38) 38.0
 
May 14, 2019, 11 a.m. 22.0 ppb (20) 8.0 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 26.0 μg/m3 (24) 6.8 μg/m3 (28) 28.0
 
May 14, 2019, 10 a.m. 16.0 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) 12.0 μg/m3 (11) 5.3 μg/m3 (22) 22.0
 
May 14, 2019, 9 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.1 ppb (1) 12.0 μg/m3 (11) 5.6 μg/m3 (23) 23.0
 
May 14, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.1 ppb (1) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
May 14, 2019, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.1 ppb (1) 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
May 14, 2019, 6 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) 14.0 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
May 14, 2019, 5 a.m. 20.0 ppb (19) 4.0 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.2 ppb (2) 15.0 μg/m3 (14) 5.3 μg/m3 (22) 22.0
 
May 14, 2019, 4 a.m. 21.0 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) 17.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
May 14, 2019, 3 a.m. 25.0 ppb (23) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 19.0 μg/m3 (17) 5.7 μg/m3 (24) 24.0
 
May 14, 2019, 2 a.m. 20.0 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) 18.0 μg/m3 (16) 5.4 μg/m3 (23) 23.0
 
May 14, 2019, 1 a.m. 25.0 ppb (23) 8.0 ppb (7) N/A 17.0 ppb (16) N/A N/A N/A 0.3 ppb (3) 17.0 μg/m3 (15) 6.5 μg/m3 (27) 27.0
 
May 14, 2019, midnight 17.0 ppb (16) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) 17.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
May 13, 2019, 11 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
May 13, 2019, 10 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) 16.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
May 13, 2019, 9 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
May 13, 2019, 8 p.m. 10.0 ppb (9) 5.0 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) 18.0 μg/m3 (16) 5.8 μg/m3 (24) 24.0
 
May 13, 2019, 7 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) 17.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
May 13, 2019, 6 p.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0